BIHAR-BOARD-XII SERIES
Biology

Microbes In Human Welfare

9 previous year questions.

Volume: 9 Ques
Yield: Medium

High-Yield Trend

1
2025
4
2024
4
2023

Chapter Questions
9 MCQs

01
PYQ 2023
medium
biology ID: bihar-bo

पानी में ई. कोलाई की उपस्थिति संकेतक है

1
बाह्य मलजल प्रदूषण का
2
पानी की कठोरता का
3
औद्योगिक प्रदूषण का
4
जल में लवणीयता का होना
02
PYQ 2023
medium
biology ID: bihar-bo

ग्लूकोज़ को अल्कोहल में बदलने वाला एंजाइम है:

1
इनवर्टेज़
2
लाइपेज़
3
जाइमेज़
4
डायस्टेज़
03
PYQ 2023
medium
biology ID: bihar-bo

नील हरित शैवाल किस खेत के लिए उपयोगी जैव उर्वरक हैं ?

1
गेहूँ
2
मक्कई
3
चावल
4
ईख
04
PYQ 2023
medium
biology ID: bihar-bo

भोजन की विषाक्तता किनके कारण होती है ?

1
राइजोपस
2
क्लोस्ट्रीडियम
3
स्टैफिलोकोकस
4
क्लोस्ट्रीडियम
05
PYQ 2024
medium
biology ID: bihar-bo
Amount of which vitamin increases after conversion of milk into curd?
1
Vitamin B\textsubscript{12}
2
Vitamin A
3
Vitamin C
4
Vitamin B\textsubscript{6}
06
PYQ 2024
medium
biology ID: bihar-bo
Alexander Fleming discovered penicillin while working on which of the following bacteria?
1
Streptococcus
2
Acetobacter
3
Staphylococcus
4
Lactobacillus
07
PYQ 2024
medium
biology ID: bihar-bo
Which of the following inhibits synthesis of cholesterol?
1
Protease
2
Streptokinase
3
Penicillin
4
Statin
08
PYQ 2024
medium
biology ID: bihar-bo
What is cyclosporin-A and what is its use?
09
PYQ 2025
medium
biology ID: bihar-bo
What is mycorrhiza?

About Microbes In Human Welfare - BIHAR-BOARD-XII

Microbes In Human Welfare is a vital chapter for BIHAR-BOARD-XII aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Microbes In Human Welfare PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Microbes In Human Welfare carry the most weight. Then, tackle the questions iteratively to solidify your understanding.